fix: IsPhoneNumber decorator did not validate correctly

[florinTAPP]

Description

Strings with characters before or after a correct phone number were being passed as valid.

Checklist

• the pull request title describes what this PR does (not a vague title like Update index.md)
• the pull request targets the default branch of the repository (develop)
• the code follows the established code style of the repository
  • npm run prettier:check passes
  • npm run lint:check passes
• tests are added for the changes I made (if any source code was modified)
• documentation added or updated
• I have run the project locally and verified that there are no errors

[braaar]

@florinTAPP - could you add some test cases to demonstrate this fix?

[frzimmer]

We have a very similar problem.
The validation for numbers with a character (e.g. "+", "abc", ...) at the beginning works correctly, because these cases are not considered valid.
But characters after a valid phone number still pass as valid.
I created a sandbox example to demonstrate this behavior: https://codesandbox.io/s/intelligent-vaughan-lc9z3r?file=/src/App.js
Is there still a plan to do something about this?

[NoNameProvided]

Superset by #1857. That PR should fix your problem.

[github-actions]

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